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Claude Haiku 4 vs GLM-4.5

A complete head-to-head: pricing, context window, benchmarks, modality coverage, and openness, with a programmatic verdict synthesized from the underlying data.

Updated

Claude Haiku 4 specs · GLM-4.5 specs
Verdict by category
  • PriceTie

    Neither model publishes per-token API pricing.

  • Context windowClaude Haiku 4

    Claude Haiku 4 accepts 200K tokens vs 128K, 1.6× the room for long documents and codebases.

  • BenchmarksTie

    No directly comparable public benchmarks are available for both models, check the spec sheets for individual scores.

  • ModalitiesTie

    Both handle text, vision.

  • OpennessGLM-4.5

    GLM-4.5 ships open weights (MIT); Claude Haiku 4 is API-only.

It's a genuine coin-flip between Claude Haiku 4 and GLM-4.5: 1 category wins each, with the rest tied. Neither model publishes per-token API pricing. Claude Haiku 4 accepts 200K tokens vs 128K, 1.6× the room for long documents and codebases.

No directly comparable public benchmarks are available for both models, check the spec sheets for individual scores. Both target the same set of modalities (text, vision), so the deciding factors are price, context, and raw quality. GLM-4.5 ships open weights (MIT); Claude Haiku 4 is API-only.

Claude Haiku 4 is the newer of the two, released 2 months after GLM-4.5, which usually means a more recent knowledge cutoff and updated safety post-training. Claude Haiku 4 is usually picked for summarization and customer support workloads, while GLM-4.5 sees more deployments in chinese llm and open source llm. If pricing matters more than every last benchmark point, run the numbers in the calculator below before committing.

Side-by-side specs

SpecClaude Haiku 4GLM-4.5
ProviderAnthropicOther
ReleasedOct 2025Jul 2025
Modalitiestext, visiontext, vision
Context window200K tokens128K tokens
Max output,,
Input · 1MPricing not publishedPricing not published
Output · 1MPricing not publishedPricing not published
Knowledge cutoff,,
Open weightsNoYes (MIT)
API availableYesYes

Pricing at scale

What you'd actually pay at typical workloads. Numbers come from each model's published per-million-token rates.

  • Light usage, 100k in / 50k out per day, vs ,
  • Heavy usage, 1M in / 500k out per day, vs ,
  • RAG workload, 5M in / 200k out per day, vs ,

Light usage, 100k in / 50k out per day: pricing not directly comparable (one or both models are missing public per-token rates). Heavy usage, 1M in / 500k out per day: pricing not directly comparable (one or both models are missing public per-token rates). RAG workload, 5M in / 200k out per day: pricing not directly comparable (one or both models are missing public per-token rates).

Price calculator

Estimated spend for the listed models at your usage. Numbers are derived from each model's published per-million-token rates.

  • Claude Haiku 4Pricing unavailable
  • GLM-4.5Pricing unavailable

Benchmarks compared

Only sourced numbers. Where a benchmark is missing for one model we show the available value rather than fabricating the other.

Benchmark scores not yet available. We only publish numbers we can source from official model cards or independent leaderboards, see methodology.
Pick Claude Haiku 4 if

Claude Haiku 4 fits when…

  • Fast and cheap for an Anthropic model
  • Inherits Claude's sensible defaults
  • Vision support included
  • Long-context tasks, handles 200K tokens vs 128K for GLM-4.5.
Pick GLM-4.5 if

GLM-4.5 fits when…

  • MIT license
  • Strong Chinese
  • Multimodal
  • Self-hosting and on-prem requirements, open weights (MIT).
Don't want either?

Consider Claude Opus 4.7

Anthropic's mid-2026 flagship, ahead on SWE-bench, agent reliability, and writing quality.

See Claude Opus 4.7 specsClaude Haiku 4 vs Claude Opus 4.7GLM-4.5 vs Claude Opus 4.7

Frequently asked

  • Is Claude Haiku 4 or GLM-4.5 cheaper?
    Per-token pricing isn't published for at least one of these models, check each model's spec page for current rates.
  • Which has the larger context window?
    Claude Haiku 4 accepts 200K tokens vs 128K for GLM-4.5.
  • Is Claude Haiku 4 or GLM-4.5 better for coding?
    Both Claude Haiku 4 and GLM-4.5 are competitive on coding benchmarks. See each model's individual spec page for HumanEval and SWE-bench scores where published. For an opinionated pick, consult our Best LLM for Coding ranking.
  • Are either of these models open source?
    GLM-4.5 ships open weights (MIT). Claude Haiku 4 is API-only.
  • When were Claude Haiku 4 and GLM-4.5 released?
    Claude Haiku 4 was released by Anthropic on 2025-10-01. GLM-4.5 was released by Other on 2025-07-28.
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